ok so im kinda new to the honda game and am looking to swap my em2. Jut wanted some input on the what motor is better and why, thanks

K24a2 or K20z1

 

depends on what you prefer. a high revving motor or a torquey motor. k20z1 is a high rev motor and the k24a2 will give you off the line power.

 

k24 block w/ k20 head.

 

easier said than done. don't expect to be able to rev a 2.4 up that high either.

 

yea i wanted to do the k24/k20 but i wont be able to afford it
but im thinking of doing a boosted k24

 

i wouldnt say 8k is low at all ive seen some built k24a1's that make close to 300whp NA that rev close to 8k. it might have shorter strokes than a k20 but it'll still rev.

as for the original question, id go k24a2

 

My vote is k24a2. Tons of potential and the mm mm good torque.

 

Some say the fun factor for revving higher with a k20 is better, but like Curiouz G said, the K24 doesn't come up that short on revs. The K24a2 comes with a "real" I-Vtech head and better quality internals than other stock k24's. It has a high compression as well, for a moderate n/a build. I say go k24a2. The torque will be nice on the street.

 

But I'd go with a K24A2 as well

 

i just got a z1 and its good depends on ure build and what u wanna do but both are good motors

 

K24 is cute. Go for it.

Btw, what car were you rolling in before you got the EM2? I'm less than a 5-10 minute drive from Kent

 

if u need i got a hook up on motors let me know

 

im going a3 .. just cause lol budget

 

k24 FTW!!!!

 

Go with a K24a2, perferably 06-08

 

K20Z1
Found in:
2005-06 Acura RSX Type-S
Displacement: 1,998 cc (121.9 cu in)
Compression: 11:0:1
Power: 201 hp (154 kW) @ 7800 rpm (SAE net J1349 Rev 8/04)
Torque: 143 ft·lb (194 Nm) @ 7000 rpm (SAE net J1349 Rev 8/04)
Redline: 8300 rpm
i-VTEC Engagement Window:5800 rpm

VS

K24A2
Found in:
2004-2008 Acura TSX, JDM CL9 Accord Type-S, RB1 Odyssey Absolute
Displacement: 2,354 cc (143.6 cu in)
Power: 200 PS (150 kW; 200 hp) @ 6800 rpm
Torque: 232 N·m (171 lb·ft) @ 4500 rpm
Bore: 87 mm
Stroke: 99 mm
Redline:
Automatic 7100 rpm
Sequential Sportshift 7300 rpm (7100 rpm U.S.)
Manual 7600 rpm (7100 rpm U.S.)
Note: The 2006-2008 K24A2 in the U.S. market Acura TSX has the following improvements

 

swap

 

Frankenstein ftw!
I've got a k24a4 I'm working on

 

k24 ftw :D

 

K24 is definitely best for off the line power...but which would be better for auto-X?

Would the weight of the K24 eff up the handling of these cars?

 

like said before i would do k24 block w/ k20 head but u on a budget so...i would say k24a2

 

A K24/K20 is more of a budget build than a straight K24a2. A frankenstein build is essentially a K24a2 motor since all the K24's dont run the true iVTEC. I dont know why everybody is recommending the K24/K20 like its some god given creation. If you have a K24a1/a4 then yeah a frank build would be a good idea (if you want to swap the a4 pistons out of course). IMO I would just buy a straight up 06+ K24a2. Alot of people pull about the same HP as a K20A motor, but with 200wtq which is excellent. If you want to rev it to 8K, just swap out the oil pump. With that mod people are revving their K24's to 8000rpms without problems, but I would rev just past where the powerband stopped.